We consider an OTFS JRC system consisting of an OTFS JRC transceiver and an OTFS communications receiver, as shown in Fig. REF . The OTFS transceiver is equipped with an OTFS transmitter that generates the JRC signal for communicating with the OTFS communication receiver and an OTFS radar receiver that processes the backscattered signals for target detection. In this section, we derive OTFS radar signal model for the single-CP OTFS modulation architecture from [1]}, [2]}, [3]}, [4]}. As our contribution is not on OTFS communication, the processing at the OTFS communication receiver will be ignored.
